Portable speaker strap



FIG. 1 is a front and left side perspective view of a portable speaker strap showing my design;

FIG. 2 is a rear and right side perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is a front and left side perspective view showing the portable speaker strap of FIG. 1 mounted with a speaker on a pipe; and,

FIG. 10 is a front and left side perspective view showing the portable speaker strap of FIG. 1 mounted with a speaker on a pipe.

The broken lines depicting portions of the portable speaker strap form no part of the claimed design. 

CLAIM The ornamental design for a portable speaker strap, as shown and described. 